If \( A = \begin{pmatrix} 1 & 2 & -3 \\ 2 & -1 & 4 \\ 3 & 1… – Class 12 Business Mathematics 2079 Solved

Class 12 Business Mathematics · 2079 · Solved Question with Answer

If \( A = \begin{pmatrix} 1 & 2 & -3 \\ 2 & -1 & 4 \\ 3 & 1 & 3 \end{pmatrix} \), find \( A^{-1} \)and verify that \( A \cdot A^{-1} = I_3 \)

Solution

If \( A = \begin{pmatrix} 1 & 2 & -3 \\ 2 & -1 & 4 \\ 3 & 1 & 3 \end{pmatrix} \) , find \( A^{-1} \) and verify that \( A \cdot A^{-1} = I_3 \)